internal static void UnRegisterUser(Methods.IOnPause user) { if (user == null) { return; } if (_users_IOnPause.Contains(user)) { _users_IOnPause.Remove(user); } }
internal static void RegisterUser(Methods.IOnPause user) { if (user == null) { return; } if (!_users_IOnPause.Contains(user)) { _users_IOnPause.Add(user); } }